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Last modified by Mengting Qiu on 2024/09/05 17:35
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... ... @@ -43,10 +43,10 @@ 43 43 44 44 * NB-IoT Bands: B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B28/B66/B70/B85 @H-FDD 45 45 * Ultra-low power consumption 46 -* DistanceDetection by Ultrasonic technology47 -* Flatobjectrange30mm-4500mm48 -* Accuracy:±(1cm+S*0.3%)(S: Distance)49 -* Measure Angle: 60°46 +* Liquid Level Measurement by Ultrasonic technology 47 +* Measure through container, No need to contact Liquid 48 +* Valid level range 20mm - 2000mm 49 +* Accuracy: ±(5mm+S*0.5%) (S: Measure Value) 50 50 * Multiply Sampling and one uplink 51 51 * Support Bluetooth v5.1 remote configure and update firmware 52 52 * Uplink on periodically ... ... @@ -100,64 +100,144 @@ 100 100 * STOP Mode: 10uA @ 3.3v 101 101 * Max transmit power: 350mA@3.3v 102 102 103 -== 1.4 Rated environmentalconditions==103 +== 1.4 Suitable Container & Liquid == 104 104 105 105 106 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:500px" %) 107 -|(% style="background-color:#4f81bd; color:white; width:163px" %)**Item**|(% style="background-color:#4f81bd; color:white; width:90px" %)**Minimum value**|(% style="background-color:#4f81bd; color:white; width:70px" %)**Typical value**|(% style="background-color:#4f81bd; color:white; width:87px" %)**Maximum value**|(% style="background-color:#4f81bd; color:white; width:40px" %)**Unit**|(% style="background-color:#4f81bd; color:white; width:50px" %)**Remarks** 108 -|(% style="width:174px" %)Storage temperature|(% style="width:86px" %)-25|(% style="width:66px" %)25|(% style="width:90px" %)80|(% style="width:48px" %)℃|(% style="width:203px" %) 109 -|(% style="width:174px" %)Storage humidity|(% style="width:86px" %) |(% style="width:66px" %)65%|(% style="width:90px" %)90%|(% style="width:48px" %)RH|(% style="width:203px" %)(1) 110 -|(% style="width:174px" %)Operating temperature|(% style="width:86px" %)-15|(% style="width:66px" %)25|(% style="width:90px" %)60|(% style="width:48px" %)℃|(% style="width:203px" %) 111 -|(% style="width:174px" %)Working humidity|(% style="width:86px" %)((( 112 - 106 +* Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc. 107 +* Container shape is regular, and surface is smooth. 108 +* Container Thickness: 109 +** Pure metal material. 2~~8mm, best is 3~~5mm 110 +** Pure non metal material: <10 mm 111 +* Pure liquid without irregular deposition. 113 113 114 - 115 -)))|(% style="width:66px" %)65%|(% style="width:90px" %)80%|(% style="width:48px" %)RH|(% style="width:203px" %)(1) 113 +(% style="display:none" %) 116 116 115 +== 1.5 Install DDS20-NB == 116 + 117 + 118 +(% style="color:blue" %)**Step 1**(%%): ** Choose the installation point.** 119 + 120 +DDS20-NB (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position. 121 + 122 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS20%20-%20LoRaWAN%20Liquid%20Level%20Sensor%20User%20Manual/WebHome/image-20220615091045-3.png?rev=1.1||alt="image-20220615091045-3.png"]] 123 + 124 + 117 117 ((( 118 -(% style="color:red" %)**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing); ** 126 +(% style="color:blue" %)**Step 2**(%%): **Polish the installation point.** 127 +))) 119 119 120 -(% style="color:red" %)** b. When the ambient temperature is 40-50 ℃, the highest humidity is the highest humidity in the natural world at the current temperature (no condensation)** 129 +((( 130 +For Metal Surface with paint, it is important to polish the surface, first use crude sand paper to polish the paint level , then use exquisite sand paper to polish the metal level to make it shine & smooth. 131 +))) 121 121 122 - 133 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/DDS20-LB_LoRaWAN_Ultrasonic_Liquid_Level_Sensor_User_Manual/WebHome/image-20230613143052-5.png?rev=1.1||alt="image-20230613143052-5.png"]] 134 + 135 + 136 +No polish needed if the container is shine metal surface without paint or non-metal container. 137 + 138 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/DDS20-LB_LoRaWAN_Ultrasonic_Liquid_Level_Sensor_User_Manual/WebHome/image-20230613143125-6.png?rev=1.1||alt="image-20230613143125-6.png"]] 139 + 140 + 141 +((( 142 +(% style="color:blue" %)**Step3: **(%%)**Test the installation point.** 123 123 ))) 124 124 125 -== 1.5 Effective measurement range Reference beam pattern == 145 +((( 146 +Power on DDS20-NB, check if the blue LED is on, If the blue LED is on, means the sensor works. Then put ultrasonic coupling paste on the sensor and put it tightly on the installation point. 147 +))) 126 126 149 +((( 150 +It is necessary to put the coupling paste between the sensor and the container, otherwise DDS20-NB won't detect the liquid level. 151 +))) 127 127 128 -(% style="color:blue" %)**1. The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.** 153 +((( 154 +After paste the DDS20-NB well, power on DDS20-NB. In the first 30 seconds of booting, device will check the sensors status and BLUE LED will show the status as below. After 30 seconds, BLUE LED will be off to save battery life. 155 +))) 129 129 130 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654852253176-749.png?rev=1.1||alt="1654852253176-749.png"]] 131 131 158 +((( 159 +(% style="color:blue" %)**LED Status:** 160 +))) 132 132 133 -(% style="color:blue" %)**2. The object to be tested is a "corrugated cardboard box" perpendicular to the central axis of 0 °, and the length * width is 60cm * 50cm.** 162 +* ((( 163 +**Onboard LED**: When power on device, the onboard LED will fast blink 4 times which means detect the sensor well. 164 +))) 134 134 135 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654852175653-550.png?rev=1.1||alt="1654852175653-550.png"]] 166 +* ((( 167 +(% style="color:blue" %)**BLUE LED**(% style="color:red" %)** always ON**(%%): Sensor is power on but doesn't detect liquid. There is problem in installation point. 168 +))) 169 +* ((( 170 +(% style="color:blue" %)**BLUE LED**(% style="color:red" %)** slowly blinking**(%%): Sensor detects Liquid Level, The installation point is good. 171 +))) 136 136 173 +((( 174 +DDS20-NB will enter into low power mode at 30 seconds after system reset or power on, Blue LED will be off after that. 175 +))) 137 137 177 + 178 +((( 179 +(% style="color:red" %)**Note :**(%%)** (% style="color:blue" %)Ultrasonic coupling paste(%%)**(% style="color:blue" %) (%%) is subjected in most shipping way. So the default package doesn't include it and user needs to purchase locally. 180 +))) 181 + 182 + 183 +((( 184 +(% style="color:blue" %)**Step4: **(%%)**Install use Epoxy ab glue.** 185 +))) 186 + 187 +((( 188 +Prepare Eproxy AB glue. 189 +))) 190 + 191 +((( 192 +Put Eproxy AB glue in the sensor and press it hard on the container installation point. 193 +))) 194 + 195 +((( 196 +Reset DDS20-NB and see if the BLUE LED is slowly blinking. 197 +))) 198 + 199 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/DDS20-LB_LoRaWAN_Ultrasonic_Liquid_Level_Sensor_User_Manual/WebHome/image-20230809172509-1.png?rev=1.1||alt="image-20230809172509-1.png"]] 200 + 201 +((( 202 +(% style="color:red" %)**Note :**(% style="color:red; display:none" %)** ** 203 + 204 +(% style="color:red" %)**1:**(%%)** (% style="color:blue" %)Eproxy AB glue(%%)** needs 3~~ 5 minutes to stable attached. we can use other glue material to keep it in the position. 205 +))) 206 + 207 +((( 208 +(% style="color:red" %)**2:**(%%)** (% style="color:blue" %)Eproxy AB glue(%%)** is subjected in most shipping way. So the default package doesn't include it and user needs to purchase locally. 209 +))) 210 + 211 + 138 138 == 1.6 Applications == 139 139 140 140 141 -* Horizontal distance measurement 142 -* Liquid level measurement 143 -* Parking management system 144 -* Object proximity and presence detection 145 -* Intelligent trash can management system 146 -* Robot obstacle avoidance 147 -* Automatic control 148 -* Sewer 149 -* Bottom water level monitoring 215 +* Smart liquid control solution 150 150 217 +* Smart liquefied gas solution 151 151 152 -== 1.7 Sleep modeand workingmode==219 +== 1.7 Precautions == 153 153 154 154 222 +* At room temperature, containers of different materials, such as steel, glass, iron, ceramics, non-foamed plastics and other dense materials, have different detection blind areas and detection limit heights. 223 + 224 +* For containers of the same material at room temperature, the detection blind zone and detection limit height are also different for the thickness of the container. 225 + 226 +* When the detected liquid level exceeds the effective detection value of the sensor, and the liquid level of the liquid to be measured shakes or tilts, the detected liquid height is unstable. 227 + 228 +(% style="display:none" %) 229 + 230 + 231 + 232 +== 1.8 Sleep mode and working mode == 233 + 234 + 155 155 (% style="color:blue" %)**Deep Sleep Mode: **(%%)Sensor doesn't have any LoRaWAN activate. This mode is used for storage and shipping to save battery life. 156 156 157 157 (% style="color:blue" %)**Working Mode:** (%%)In this mode, Sensor will work as LoRaWAN Sensor to Join LoRaWAN network and send out sensor data to server. Between each sampling/tx/rx periodically, sensor will be in IDLE mode), in IDLE mode, sensor has the same power consumption as Deep Sleep mode. 158 158 159 159 160 -== 1. 8Button & LEDs ==240 +== 1.9 Button & LEDs == 161 161 162 162 163 163 [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]